Used as a highly efficient arylating agent in organic synthesis, particularly in photoredox catalysis and radical reactions. It enables mild, metal-free arylation of heteroarenes, nucleobases, and complex natural products, making it valuable in pharmaceutical research for constructing biaryl motifs. Its stability and reactivity under visible light activation allow for selective functionalization in late-stage drug modification. Commonly employed in the development of agrochemicals, dyes, and bioactive molecules where controlled aryl transfer is required.